My 88 XJ6 fuel lid will not release when I push the lid down and then release it. I think maybe the solenoid in the bottom of the assembly may be bad. Any suggestions? If I need to replace it, any suggestions as to where I can find one? On another note, there is a switch in the middle of the dash that has a lock symbol on it. When I push on that switch, it rolls the passenger side window down. Any suggestions?

Thanks in advance